@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
:root{--paper:#f5f6f1;--white:#fff;--ink:#172b26;--muted:#68736c;--line:#dce2d9;--green:#234e3b;--lime:#d7ee83;--soft:#edf1e8;--mono:'IBM Plex Mono',monospace;--sans:'DM Sans',system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #81a73e;outline-offset:4px}header{height:85px;border-bottom:1px solid var(--line);background:var(--paper)}.wrap{width:min(1192px,calc(100% - 64px));margin:auto}.nav{display:flex;align-items:center;justify-content:space-between;height:100%;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;line-height:1.2;letter-spacing:-.4px}.brand small{display:block;font-size:10px;font-family:var(--mono);font-weight:400;letter-spacing:1.5px;margin-top:6px;color:var(--muted)}.brandmark{width:37px;height:37px;background:var(--green);border-radius:10px;color:var(--lime);display:grid;place-items:center}.brandmark svg{width:25px}.navlinks{display:flex;gap:29px;align-items:center;font-size:13px}.navlinks>a:first-child{font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:45px;padding:10px 19px;border-radius:7px;border:1px solid var(--line);background:var(--white);font-size:13px;font-weight:600;color:var(--ink)}.btn:hover{border-color:var(--green);background:var(--soft)}.btn.dark{background:var(--green);color:white;border-color:var(--green)}.btn.dark:hover{background:#183a2b}.btn.lime{background:var(--lime);border-color:var(--lime);color:var(--ink)}.arrow{font-size:18px;font-weight:400}.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:var(--green);display:flex;align-items:center;gap:9px}.dot{width:6px;height:6px;border-radius:100%;background:#7b9949;display:inline-block}.hero{padding:66px 0 45px;display:grid;grid-template-columns:1.3fr .7fr;gap:80px;align-items:center}h1{font-weight:550;letter-spacing:-2.6px;line-height:1.08;font-size:58px;margin:23px 0 21px}.hero h1{max-width:710px}.hero h1 em{font-style:normal;color:#648144}.hero p{max-width:560px;color:var(--muted);font-size:16px;line-height:1.8}.hero-note{display:flex;align-items:center;gap:19px;margin-top:27px;font-family:var(--mono);font-size:10px;color:var(--muted)}.hero-note span+span:before{content:'+';margin-right:19px;color:#9aa58e}.hero-art{height:270px;border:1px solid #dce4d5;border-radius:100%;position:relative;background:radial-gradient(circle,#e3eddb 0%,transparent 69%);display:grid;place-items:center}.hero-art:before,.hero-art:after{content:'';position:absolute;border:1px dashed #d3ddc8;border-radius:100%;width:82%;height:82%}.hero-art:after{width:62%;height:62%}.hero-art svg{width:250px;height:240px;z-index:1}.floating{position:absolute;font-family:var(--mono);font-size:11px;background:white;border:1px solid var(--line);border-radius:6px;padding:8px 12px;z-index:2;box-shadow:0 5px 15px #17332808}.floating.one{left:-18px;top:22px}.floating.two{right:-20px;bottom:20px}.section-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding:15px 0;margin-bottom:24px}.section-head h2{font-size:17px;font-weight:600;margin:0;letter-spacing:-.3px}.section-head span{font-size:11px;font-family:var(--mono);color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.tool-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);padding:26px;border-radius:11px;transition:transform .2s,border-color .2s;position:relative}.tool-card:hover{transform:translateY(-4px);border-color:#809779}.card-icon{width:46px;height:46px;border:1px solid #dce6d6;border-radius:9px;display:grid;place-items:center;background:#f2f6ed;color:var(--green);font-family:var(--mono);font-size:20px}.tool-card .tag{position:absolute;right:22px;top:28px;font:9px var(--mono);letter-spacing:1px;padding:5px 8px;border:1px solid var(--line);border-radius:4px;color:var(--muted)}.tool-card h3{font-size:20px;letter-spacing:-.6px;font-weight:600;margin:24px 0 8px}.tool-card p{font-size:13px;color:var(--muted);margin:0 0 24px}.card-bottom{margin-top:auto;border-top:1px solid #edf0e9;padding-top:17px;display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:600}.formula-mini{font:11px var(--mono);color:var(--muted)}.promo{background:var(--green);border-radius:12px;color:white;display:grid;grid-template-columns:1fr auto;align-items:center;gap:50px;padding:34px 42px;margin:48px 0}.promo .eyebrow{color:var(--lime);font-size:10px}.promo h2{margin:10px 0 9px;font-size:27px;letter-spacing:-.8px;font-weight:500}.promo p{color:#d2ddd2;font-size:13px;margin:0;max-width:650px}.promo .btn{white-space:nowrap}.promo small{display:block;color:#bdd0bf;font-size:10px;text-align:center;margin-top:9px}.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;padding:5px 0 50px}.intro-grid .num{font:11px var(--mono);color:#8a9a7e}.intro-grid h3{font-size:15px;font-weight:600;margin:10px 0}.intro-grid p{font-size:13px;color:var(--muted);margin:0}footer{border-top:1px solid var(--line);padding:25px 0;color:var(--muted);font-size:11px}.footer-inner{display:flex;justify-content:space-between;gap:20px}.footer-inner div:last-child{display:flex;gap:20px}.breadcrumb{font-size:11px;color:var(--muted);padding:25px 0 0;display:flex;gap:10px}.breadcrumb a:hover{text-decoration:underline}.page-title{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;padding:22px 0 30px}.page-title h1{font-size:43px;margin:13px 0 12px;letter-spacing:-1.8px}.page-title p{color:var(--muted);font-size:14px;margin:0;max-width:680px}.page-title .badge{white-space:nowrap;font:10px var(--mono);border:1px solid var(--line);padding:7px 11px;border-radius:5px;margin-bottom:3px}.calculator-layout{display:grid;grid-template-columns:210px 1fr;gap:27px;align-items:start}.side-label{font:10px var(--mono);color:var(--muted);letter-spacing:1px;margin:5px 0 14px}.sidebar a{display:flex;align-items:center;gap:10px;padding:12px 13px;font-size:12px;border-radius:7px;margin:4px 0}.sidebar a:hover{background:#e9eee2}.sidebar a.active{background:#e5ecd9;color:#294b24;font-weight:600}.sidebar a span{font:14px var(--mono);width:19px}.sidebar .side-note{border-top:1px solid var(--line);margin-top:24px;padding:18px 10px;color:var(--muted);font-size:11px}.workspace{border:1px solid var(--line);border-radius:11px;background:white;overflow:hidden}.workspace-bar{padding:17px 23px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px}.workspace-bar>span{display:flex;align-items:center;gap:8px;font-weight:600}.workspace-bar .live{font:9px var(--mono);color:var(--muted);letter-spacing:.8px}.calc-body{display:grid;grid-template-columns:1fr 1fr}.input-panel{padding:25px;border-right:1px solid var(--line)}.input-panel h2{font-size:14px;font-weight:600;margin:0 0 19px}.field{margin:0 0 20px}.field label,.field>span.label{display:flex;justify-content:space-between;font-size:12px;font-weight:500;margin-bottom:7px}.field label span{font:11px var(--mono);color:var(--muted)}.input-unit{display:flex;border:1px solid #ccd5c6;border-radius:6px;overflow:hidden;height:46px;background:white}.input-unit:focus-within{border-color:#5c7948;box-shadow:0 0 0 2px #c6d8a842}.input-unit input{width:100%;min-width:0;border:0;background:none;padding:11px 12px;font:14px var(--mono);color:var(--ink);outline:none}.input-unit select{border:0;border-left:1px solid var(--line);background:#f5f7f1;padding:0 8px;min-width:67px;font:11px var(--mono);outline:none;color:var(--muted)}.input-unit b{font:12px var(--mono);background:#f5f7f1;border-left:1px solid var(--line);padding:11px 14px}.select-wide{width:100%;border:1px solid #ccd5c6;border-radius:6px;background:white;height:43px;padding:0 10px;color:var(--ink);font-size:12px}.field small{font-size:10px;color:var(--muted);display:block;margin-top:6px}.subcontrols{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:18px}.subcontrols button{border:1px solid var(--line);border-radius:5px;background:var(--paper);padding:5px 9px;font:10px var(--mono);color:var(--muted)}.subcontrols button:hover{border-color:var(--green);color:var(--green)}.check{display:flex;gap:9px;font-size:12px;align-items:center;margin:8px 0 17px}.check input{accent-color:var(--green);width:14px;height:14px}.actions{display:flex;gap:10px;margin-top:24px}.actions button{min-height:37px;font-size:11px;padding:7px 12px}.actions button:first-child{flex:1}.result-panel{background:#f9faf6;padding:20px 24px;display:flex;flex-direction:column}.diagram{min-height:209px;display:grid;place-items:center;background-image:radial-gradient(#dce3d3 .8px,transparent .8px);background-size:13px 13px;border-radius:5px;position:relative}.diagram svg{width:100%;max-width:300px;height:190px;overflow:visible}.diagram text,.hero-art text{font-family:var(--mono);font-size:11px;fill:var(--muted)}.diagram .wire,.hero-art .wire{fill:none;stroke:#5f7662;stroke-width:1.7;stroke-linejoin:round}.diagram .accent,.hero-art .accent{stroke:#577934;stroke-width:2;fill:none}.diagram .node,.hero-art .node{fill:#54772f}.result{border-top:1px solid var(--line);margin-top:17px;padding:18px 0 5px}.result-label{font:9px var(--mono);text-transform:uppercase;letter-spacing:1.2px;color:var(--muted)}.result-value{font:500 38px var(--mono);color:var(--green);letter-spacing:-1.7px;line-height:1.25;margin:8px 0 13px}.metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;border-top:1px solid var(--line);padding-top:15px}.metric span{display:block;font-size:10px;color:var(--muted);margin-bottom:3px}.metric strong{font:12px var(--mono);font-weight:500}.result-note{font-size:10px;color:var(--muted);margin:14px 0 0}.error{font-size:12px;color:#a13625;background:#fff1eb;border:1px solid #f1cdbf;border-radius:6px;padding:10px;margin-bottom:15px}.error[hidden], [hidden]{display:none!important}.explanation{padding:20px 24px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;align-items:baseline;gap:17px}.explanation code{font:11px var(--mono);color:var(--green)}.under-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:27px}.info-card{border:1px solid var(--line);border-radius:9px;padding:24px;background:#fafbf7}.info-card h2{font-size:15px;margin:0 0 13px;font-weight:600}.info-card p,.info-card li{font-size:12px;color:var(--muted)}.info-card ol{padding-left:19px;margin-bottom:0}.equation{padding:14px;background:#edf2e5;border-radius:5px;font:12px var(--mono);color:var(--green);margin:15px 0;overflow-wrap:anywhere}.faq{margin:27px 0}.faq h2{font-size:17px;font-weight:600}.faq details{border-bottom:1px solid var(--line);padding:13px 0}.faq summary{font-size:12px;font-weight:500;cursor:pointer}.faq details p{font-size:12px;color:var(--muted);max-width:720px}.related{margin:30px 0}.related a{font-size:12px;text-decoration:underline;text-underline-offset:3px;margin-right:22px}.related h2{font-size:15px;font-weight:600}.resistor-row{display:flex;gap:8px;align-items:flex-end;margin-bottom:13px}.resistor-row .field{flex:1;margin:0}.remove{width:30px;height:44px;border:1px solid var(--line);border-radius:5px;background:white;color:var(--muted)}.add{font-size:11px;color:var(--green);border:1px dashed #bac9af;border-radius:5px;background:#f5f8ee;padding:8px;width:100%;margin:1px 0 20px}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}.status{font-size:10px;min-height:18px;color:var(--green);margin:7px 0 0}.branch-results{font:10px var(--mono);margin-top:13px;line-height:1.9;color:var(--muted)}.skip{position:absolute;left:15px;top:-60px;background:white;padding:10px;z-index:5}.skip:focus{top:10px}.privacy-note{font-size:10px;color:var(--muted);text-align:center;margin:14px 0 0}.mobile-tool-nav{display:none}.symbol{font-family:var(--mono)}
@media(min-width:1500px){.hero{padding-top:80px;padding-bottom:60px}}@media(max-width:1000px){.wrap{width:calc(100% - 40px)}.hero{gap:35px}.hero h1{font-size:48px}.calculator-layout{grid-template-columns:165px 1fr;gap:15px}.input-panel{padding:20px}.result-panel{padding:17px}.sidebar a{font-size:11px;padding:11px 8px}.promo{padding:30px;gap:30px}.promo h2{font-size:24px}.navlinks{gap:20px}.page-title h1{font-size:37px}.result-value{font-size:32px}.hero-art{height:230px}.floating.two{right:-8px}}@media(max-width:760px){header{height:72px}.wrap{width:calc(100% - 32px)}.brand{font-size:13px;gap:9px}.brand small{font-size:8px}.brandmark{width:32px;height:32px}.navlinks{gap:10px}.navlinks>a:not(.btn){display:none}.navlinks .btn{font-size:11px;min-height:37px;padding:8px 12px}.hero{grid-template-columns:1fr;padding:42px 0 26px;gap:22px}.hero h1{font-size:43px;letter-spacing:-1.8px}.hero p{font-size:14px}.hero-art{display:none}.hero-note{font-size:9px;gap:12px}.hero-note span+span:before{margin-right:12px}.cards{grid-template-columns:1fr}.tool-card{padding:23px}.tool-card h3{margin-top:18px}.tool-card p{margin-bottom:17px}.promo{grid-template-columns:1fr;gap:22px;margin:32px 0;padding:27px}.promo h2{font-size:25px}.promo .promo-action{justify-self:start}.promo small{text-align:left}.intro-grid{grid-template-columns:1fr;gap:21px;padding-bottom:30px}.intro-grid h3{display:inline;margin-left:10px}.intro-grid p{margin-top:6px}.section-head{margin-bottom:18px}.section-head span{font-size:9px}.sidebar{display:none}.calculator-layout{display:block}.page-title{padding:20px 0 23px}.page-title h1{font-size:33px;letter-spacing:-1.3px}.page-title p{font-size:13px}.page-title .badge{display:none}.breadcrumb{font-size:10px;padding-top:19px}.calc-body{grid-template-columns:1fr}.input-panel{border-right:0;border-bottom:1px solid var(--line);padding:23px}.result-panel{padding:20px 23px}.diagram{min-height:178px}.diagram svg{height:170px}.result-value{font-size:36px}.metrics{grid-template-columns:1fr 1fr}.workspace-bar{padding:15px 20px}.under-grid{grid-template-columns:1fr;gap:15px}.info-card{padding:21px}.explanation{display:block;padding:17px 23px}.explanation code{display:block;margin-top:5px}.footer-inner{flex-direction:column;gap:9px}.mobile-tool-nav{display:block;margin-bottom:17px}.mobile-tool-nav select{background:#eaf0e1}.related a{display:inline-block;margin-bottom:10px}.promo p{font-size:12px}}
.compact-note{padding:14px;margin-top:24px}.compact-note p{margin:0}.waveform{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}.waveform svg{display:block;width:100%;height:88px}.waveform text{font:9px var(--mono);fill:var(--muted)}.result-note a{text-decoration:underline;text-underline-offset:3px}.related{display:flex;flex-wrap:wrap;gap:8px 0}.related h2{width:100%}.card-bottom{gap:12px}.formula-mini{font-size:10px}.sidebar a{font-size:11px}
.rc-response{border-top:1px solid var(--line);margin-top:20px;padding-top:18px}.rc-response svg{display:block;width:100%;height:auto;margin:8px 0 17px}.rc-response svg text{font:8px var(--mono);fill:var(--muted)}

.band-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.band-fields .band-label{font:inherit;color:var(--ink)}.color-swatch{display:inline-block;flex-shrink:0;width:14px;height:14px;border-radius:50%;border:1px solid #0003;margin-left:5px}.band-fields label{align-items:center}.band-fields .select-wide{font-size:11px}#capacitor-code{font-size:23px;letter-spacing:2px}.band-fields .field{min-width:0}

#smd-code{font-size:23px;letter-spacing:2px}

.card-head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px;min-height:88px}.tool-card .card-head .tag{position:static;margin-top:4px;font-size:8px;letter-spacing:.5px}.card-icon.illustrated{width:88px;height:88px;background:#f2f6ed;flex-shrink:0}.card-icon.illustrated img{display:block;width:88px;height:88px;object-fit:contain;padding:5px}
@media(min-width:761px) and (max-width:1000px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}

.home-intro{padding:40px 0 28px}.home-intro h1{font-size:40px;line-height:1.15;letter-spacing:-1.3px;margin:0 0 14px;font-weight:600}.home-intro p{font-size:15px;color:var(--muted);max-width:780px;margin:0;line-height:1.7}.home-app{display:flex;align-items:center;justify-content:space-between;gap:24px;border:1px solid var(--line);border-radius:9px;padding:22px 25px;margin:34px 0;background:white}.home-app h2{font-size:17px;margin:0 0 5px}.home-app p{font-size:13px;margin:0;color:var(--muted)}.home-app .btn{white-space:nowrap;border:1px solid var(--line)}.home-about>h2{font-size:20px;margin:30px 0 14px}.home-about .intro-grid h3{font-size:14px;margin:6px 0 8px}@media(max-width:760px){.home-intro{padding:30px 0 24px}.home-intro h1{font-size:32px;letter-spacing:-1px}.home-intro p{font-size:14px}.home-app{align-items:flex-start;flex-direction:column;gap:16px;padding:21px}.home-about .intro-grid h3{display:block;margin:0 0 7px}}

.store-links{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.store-links .btn{white-space:nowrap}.home-app .store-links{flex-shrink:0}.footer-inner>div{flex-wrap:wrap;row-gap:8px}@media(max-width:760px){.home-app .store-links{width:100%}.store-links .btn{font-size:12px;padding:10px 14px}}

.store-links{gap:20px;padding:10px 0}.store-badge{display:inline-flex;line-height:0;flex-shrink:0;border:0;padding:0;background:none}.store-badge img{display:block;height:40px;width:auto;max-width:none}.store-badge:focus-visible{outline:2px solid #8bad49;outline-offset:5px;border-radius:6px}.home-app .store-links{flex-shrink:1;min-width:0}

.brand-credits{font-size:10px;line-height:1.6;margin-top:14px;margin-bottom:0}

.diagram .live-circuit{display:block;width:100%;max-width:none;height:auto;max-height:none}.diagram .live-circuit text{font:13px var(--mono);fill:var(--ink)}.diagram .live-circuit .component-value{font-size:14px;fill:var(--green);font-weight:500}.diagram .live-circuit .component-name{font-size:12px;fill:var(--muted)}.diagram .live-circuit .component-body{fill:#fbfcf7}.diagram .live-circuit .diagram-caption{font-size:12px;fill:var(--muted)}.diagram .live-circuit .pin-label{font-size:10px}.diagram .live-circuit .chip-label{font-size:18px}.diagram .live-circuit .terminal-label{font-size:12px}.diagram-note{padding:24px 12px;color:var(--muted);font-size:13px;text-align:center}

.sidebar a{gap:9px;padding:9px 10px;align-items:center}.sidebar a .nav-tool-icon{display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px}.sidebar a .nav-tool-icon img{display:block;width:32px;height:32px;object-fit:contain}.sidebar a .nav-tool-name{width:auto;min-width:0;font:inherit;line-height:1.4}.nav-tool-icon .nav-symbol{font-size:23px;line-height:1;width:auto}.mobile-tool-choice{display:flex;align-items:center;gap:10px}.mobile-tool-icon{display:grid;place-items:center;flex:0 0 40px;width:40px;height:40px;color:var(--green)}.mobile-tool-icon img{display:block;width:40px;height:40px;object-fit:contain}.mobile-tool-icon .nav-symbol{font:25px var(--mono)}.mobile-tool-choice .select-wide{flex:1;width:0;min-width:0}@media(min-width:761px) and (max-width:1000px){.sidebar a{padding:8px 5px;gap:6px}.sidebar a .nav-tool-icon{width:30px;height:30px;flex-basis:30px}.sidebar a .nav-tool-icon img{width:28px;height:28px}}
.app-hero{display:grid;grid-template-columns:1.35fr .65fr;align-items:center;gap:65px;padding:58px 0 48px}.app-hero h1{font-size:clamp(40px,4.9vw,64px);font-weight:550;margin:22px 0;letter-spacing:-2.8px}.app-hero-copy>p{max-width:540px;color:var(--muted);font-size:16px}.app-hero-copy .app-lead{color:var(--ink);font-size:22px;line-height:1.5;max-width:500px}.app-downloads{margin:30px 0 20px}.app-downloads h2{font-size:13px;font-weight:600;margin:0}.app-downloads>p{font-size:12px;color:var(--muted);margin:0}.app-text-link{display:inline-flex;gap:15px;font-size:13px;font-weight:600;color:var(--green);text-decoration:underline;text-underline-offset:5px}.app-hero-visual,.app-feature-visual{display:grid;place-items:center;background:#e7ecdf;border-radius:14px;padding:28px;position:relative}.app-hero-visual{background:radial-gradient(ellipse at 50% 40%,#d9e6c2,#edf1e7 70%)}.app-screen{margin:0;width:224px;max-width:100%;position:relative}.app-screen img{display:block;width:100%;height:auto;border-radius:17px;box-shadow:0 15px 30px #1a38251a}.app-screen figcaption{font:10px var(--mono);color:var(--muted);text-align:center;margin-top:16px;line-height:1.5}.app-contents{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;display:flex;gap:28px;align-items:center;flex-wrap:wrap;font-size:13px}.app-contents>span{font:10px var(--mono);letter-spacing:1px;margin-right:auto;color:var(--muted)}.app-contents a:hover,.app-online a:hover{text-decoration:underline;text-underline-offset:4px}.app-topics{padding:65px 0}.app-section-intro h2,.app-feature h2,.app-online h2{font-size:36px;line-height:1.2;letter-spacing:-1.2px;font-weight:550;margin:14px 0}.app-section-intro>p,.app-feature-copy>p{color:var(--muted);max-width:560px}.app-topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:36px}.app-topic-grid article{border-top:1px solid #a8b79a;padding-top:23px}.app-topic-number{font:10px var(--mono);letter-spacing:1px;color:var(--green)}.app-topic-grid h3{font-size:20px;font-weight:550;letter-spacing:-.5px;margin:12px 0}.app-topic-grid p{font-size:14px;color:var(--muted);margin:0}.app-feature{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center;margin:0 0 70px;scroll-margin-top:25px}.app-feature-visual{padding:35px}.app-feature-copy h2{font-size:42px;margin:16px 0 22px}.app-feature-copy ul{padding-left:20px;color:var(--ink);font-size:14px;line-height:1.8}.app-feature-copy li{padding:5px 0}.app-feature-copy .app-small{font-size:12px;margin-top:25px}.app-feature-reverse .app-feature-visual{background:#e6ece8}.app-circuit-list{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;font-size:13px;margin:25px 0}.app-circuit-list span{border-bottom:1px solid var(--line);padding:11px 0}.app-online{padding:45px 0 55px;border-top:1px solid var(--line)}.app-online-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;margin:25px 0}.app-online-grid a{display:flex;align-items:center;gap:15px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:550}.app-online-grid a>span:last-child{margin-left:auto}.app-online-icon{display:grid;place-items:center;width:48px;height:48px;flex:0 0 48px;font:30px var(--mono);color:var(--green)}.app-online-icon img{width:48px;height:48px;object-fit:contain}.app-faq{max-width:800px;margin:5px 0 60px}.app-faq h2{font-size:27px;font-weight:550;letter-spacing:-.7px}.app-final{border-top:1px solid var(--line);padding:30px 0 55px;display:flex;align-items:center;justify-content:space-between;gap:25px}.app-final h2{font-size:24px;font-weight:550;margin:0}.app-final p{color:var(--muted);margin:6px 0 0;font-size:14px}.app-topics,.app-online{scroll-margin-top:25px}.home-app .app-text-link{font-size:12px;margin-top:8px}
@media(max-width:1000px){.app-hero{gap:35px;grid-template-columns:1.2fr .8fr}.app-hero h1{font-size:47px}.app-feature{gap:40px}.app-contents{gap:20px}.app-contents>span{width:100%}.app-feature-copy h2{font-size:35px}}
@media(max-width:760px){.app-hero{grid-template-columns:1fr;gap:30px;padding:35px 0}.app-hero h1{font-size:42px;letter-spacing:-1.8px}.app-hero-copy .app-lead{font-size:20px}.app-hero-copy>p{font-size:14px}.app-hero-visual{padding:25px}.app-screen{width:210px}.app-contents{gap:12px 22px;padding:19px 0;font-size:12px}.app-topics{padding:42px 0}.app-section-intro h2{font-size:29px}.app-topic-grid{grid-template-columns:1fr;gap:25px;margin-top:25px}.app-feature{grid-template-columns:1fr;gap:28px;margin-bottom:45px}.app-feature-copy h2{font-size:33px}.app-feature-visual{padding:26px}.app-feature:first-of-type{margin-top:0}.app-feature-reverse .app-feature-visual{order:-1}.app-circuit-list{font-size:12px}.app-online{padding:32px 0 40px}.app-online-grid{grid-template-columns:1fr}.app-online-grid a{padding:14px 0}.app-final{align-items:flex-start;flex-direction:column;padding-bottom:40px}.app-faq{margin-bottom:35px}}

/* App promotion: three-screen composition and calculator screenshot carousel. */
.app-hero-promo{grid-template-columns:.94fr 1.06fr;gap:22px;padding:40px 0}.app-hero-promo h1{font-size:clamp(43px,4.45vw,58px);letter-spacing:-2.4px}.app-hero-promo .app-lead{font-size:25px;line-height:1.4}.app-hero-promo .app-hero-copy>p:not(.app-lead){max-width:430px}.app-showcase{position:relative;isolation:isolate;height:650px;background:#e4edda;border-radius:24px;overflow:hidden}.app-showcase:before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 70%,#bdd58c88,transparent 65%)}.showcase-orbit{position:absolute;width:560px;height:560px;left:50%;top:56%;transform:translate(-50%,-50%);border:1px solid #b9c9a6;border-radius:50%;z-index:-1}.showcase-orbit:before,.showcase-orbit:after{content:'';position:absolute;inset:45px;border:1px solid #c6d3b8;border-radius:50%}.showcase-orbit:after{inset:90px}.showcase-label{position:absolute;top:27px;width:100%;text-align:center;font:9px var(--mono);letter-spacing:1.7px;color:#48603c}.showcase-phones{position:absolute;inset:76px 8px 83px}.showcase-phone{position:absolute;height:auto;display:block;border:2px solid #1c2c24;border-radius:24px;box-shadow:0 24px 28px -10px #18342555;transform-origin:50% 75%;background:#071d17}.showcase-center{width:39%;max-width:220px;top:0;left:50%;transform:translateX(-50%);z-index:3}.showcase-left,.showcase-right{width:34%;max-width:195px;top:55px;z-index:1}.showcase-left{left:5%;transform:rotate(-10deg)}.showcase-right{right:5%;transform:rotate(10deg)}.showcase-categories{position:absolute;bottom:48px;left:0;right:0;display:flex;gap:20px;justify-content:center;font-size:12px;font-weight:600;color:#30482d}.showcase-categories span+span:before{content:'·';margin-right:20px;color:#6c8456}.showcase-caption{position:absolute;bottom:14px;width:100%;text-align:center;margin:0;font:9px var(--mono);color:#65745c}.app-gallery-section{background:#eaf0e4;border:1px solid #d8e1cf;border-radius:20px;padding:36px 32px 20px;margin:52px 0;min-width:0;scroll-margin-top:25px}.gallery-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:28px}.gallery-heading h2{font-size:36px;line-height:1.2;letter-spacing:-1.2px;font-weight:550;margin:12px 0}.gallery-heading p{font-size:14px;color:var(--muted);margin:0;max-width:600px}.gallery-arrows{display:flex;gap:10px;flex-shrink:0}.gallery-arrows[hidden]{display:none}.gallery-arrow{display:grid;place-items:center;width:44px;height:44px;border:1px solid #9eb08f;border-radius:50%;background:transparent;font-size:22px;color:var(--green);transition:background .15s}.gallery-arrow:hover:enabled{background:var(--green);color:white}.gallery-arrow:disabled{opacity:.3}.app-gallery-track{display:flex;gap:24px;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#94aa7c transparent;padding:10px 4px 22px;scroll-padding:4px}.gallery-slide{flex:0 0 252px;min-width:0;margin:0;scroll-snap-align:start}.gallery-image{display:block;position:relative;border-radius:25px;background:#061e18;box-shadow:0 8px 16px #1c3d2317;line-height:0;overflow:hidden;transition:transform .2s}.gallery-image:hover{transform:translateY(-4px)}.gallery-image img{display:block;width:100%;height:auto;border-radius:25px}.gallery-enlarge{position:absolute;bottom:13px;right:13px;width:29px;height:29px;display:grid;place-items:center;border-radius:50%;background:#f5f6f1;color:var(--green);font-size:19px;line-height:1;box-shadow:0 1px 6px #0002}.gallery-slide figcaption{padding:18px 0 0}.gallery-tag{font:9px var(--mono);letter-spacing:1px;color:#5d7450}.gallery-slide h3{font-size:19px;letter-spacing:-.5px;font-weight:600;margin:6px 0}.gallery-slide p{font-size:13px;line-height:1.65;color:#5d6d5d;margin:0}.gallery-bottom{display:flex;justify-content:space-between;gap:15px;font:10px var(--mono);color:#62735a;border-top:1px solid #d2ddc9;padding-top:16px;margin-top:5px}.gallery-position{font-weight:500;color:var(--green)}.app-reference-pair{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin:65px 0}.app-reference-pair article{scroll-margin-top:30px}.app-reference-pair h2{font-size:36px;line-height:1.2;letter-spacing:-1.2px;font-weight:550;margin:16px 0}.app-reference-pair p{font-size:14px;color:var(--muted);max-width:480px}.app-reference-foot{font-size:11px;color:var(--green);border-top:1px solid var(--line);padding-top:17px;margin-top:22px;display:flex;justify-content:space-between;gap:15px}.app-screen-dialog{padding:0;border:1px solid #66846d;border-radius:15px;background:#f5f6f1;max-width:calc(100vw - 24px);width:min(540px,calc(100vw - 24px));max-height:92dvh;overflow:auto;box-shadow:0 24px 100px #0006}.app-screen-dialog::backdrop{background:#071b15d9;backdrop-filter:blur(5px)}.screen-dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 16px;background:var(--paper);position:sticky;top:0;border-bottom:1px solid var(--line);z-index:1}.screen-dialog-bar h2{font-size:14px;margin:0;font-weight:600}.screen-dialog-close{border:1px solid var(--line);border-radius:5px;padding:6px 10px;font-size:12px;background:white;color:var(--ink)}.app-screen-dialog>img{width:100%;height:auto;display:block}.screen-dialog-open{overflow:hidden}
@media(min-width:761px) and (max-width:1000px){.app-hero-promo{grid-template-columns:1fr 1fr;gap:16px}.app-hero-promo h1{font-size:43px;letter-spacing:-1.9px}.app-showcase{height:550px}.showcase-phones{inset:100px 2px 80px}.showcase-phone{border-radius:18px}.showcase-left,.showcase-right{top:35px}.showcase-label{font-size:8px;letter-spacing:1px}.showcase-categories{font-size:10px;gap:12px}.showcase-categories span+span:before{margin-right:12px}.app-reference-pair{gap:35px}.app-gallery-section{padding:28px 24px 20px}.gallery-heading h2{font-size:30px}}
@media(max-width:760px){.app-hero-promo{grid-template-columns:1fr;gap:30px;padding:34px 0}.app-hero-promo h1{font-size:42px;letter-spacing:-1.8px}.app-hero-promo .app-lead{font-size:23px}.app-showcase{height:clamp(430px,118vw,600px);width:100%;border-radius:18px}.showcase-phones{inset:70px 4px 75px}.showcase-phone{border-width:1.5px;border-radius:18px}.showcase-center{width:42%;max-width:210px}.showcase-left,.showcase-right{width:34%;max-width:175px;top:43px}.showcase-left{left:4%}.showcase-right{right:4%}.showcase-label{font-size:8px;letter-spacing:1.2px;top:25px}.showcase-categories{bottom:40px;font-size:11px;gap:15px}.showcase-categories span+span:before{margin-right:15px}.showcase-caption{bottom:15px;font-size:8px}.app-gallery-section{margin:34px 0;border-radius:15px;padding:25px 16px 17px}.gallery-heading{align-items:flex-start;flex-wrap:wrap;gap:15px;margin-bottom:14px}.gallery-heading h2{font-size:28px;letter-spacing:-.9px}.gallery-heading p{font-size:13px}.gallery-arrow{width:39px;height:39px}.gallery-slide{flex-basis:238px}.gallery-bottom{flex-direction:column;gap:7px;font-size:9px}.app-reference-pair{grid-template-columns:1fr;gap:35px;margin:40px 0}.app-reference-pair h2{font-size:30px}.app-reference-pair p{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.gallery-image{transition:none}}
.showcase-left,.showcase-right{width:32%}.showcase-left{left:8%;transform:rotate(-8deg)}.showcase-right{right:8%;transform:rotate(8deg)}
.app-tool-catalog{padding:25px 0 55px;scroll-margin-top:25px}.catalog-intro{max-width:720px;margin-bottom:30px}.catalog-intro h2{font-size:37px;line-height:1.2;letter-spacing:-1.2px;font-weight:550;margin:15px 0}.catalog-intro p{font-size:15px;color:var(--muted)}.catalog-groups{display:grid;grid-template-columns:1fr 1fr;column-gap:55px}.catalog-group{border-top:1px solid #bccbb0;display:flex;align-items:flex-start;gap:18px;padding:25px 0 28px;min-width:0}.catalog-index{font:11px var(--mono);color:#71865e;flex:0 0 25px;padding-top:6px}.catalog-group h3{font-size:21px;line-height:1.35;font-weight:600;letter-spacing:-.5px;margin:0 0 13px}.catalog-group ul{list-style:none;padding:0;margin:0;font-size:14px;color:#53634e;line-height:1.7}.catalog-group li{position:relative;padding-left:15px;margin:4px 0}.catalog-group li:before{content:'·';position:absolute;left:0;color:#78954e;font-weight:700}.catalog-group:last-child{grid-column:1/-1}.catalog-group:last-child>div{width:100%}.catalog-group:last-child ul{display:grid;grid-template-columns:1fr 1fr;gap:0 35px}.app-circuit-note{display:grid;grid-template-columns:1fr 1fr;gap:65px;background:#eaf0e4;padding:35px;border-radius:14px;margin:0 0 45px;align-items:center;scroll-margin-top:25px}.app-circuit-note h2{font-size:29px;line-height:1.2;letter-spacing:-.8px;font-weight:550;margin:14px 0 0}.app-circuit-note p{font-size:14px;color:#53634e;margin:0;line-height:1.8}.app-web-link{margin:0 0 40px;padding-top:20px;border-top:1px solid var(--line)}
@media(max-width:760px){.app-tool-catalog{padding:12px 0 30px}.catalog-intro h2{font-size:29px;letter-spacing:-.9px}.catalog-intro{margin-bottom:22px}.catalog-groups{grid-template-columns:1fr}.catalog-group{padding:22px 0;gap:12px}.catalog-group h3{font-size:20px}.catalog-group:last-child ul{grid-template-columns:1fr}.catalog-group ul{font-size:13px}.app-circuit-note{grid-template-columns:1fr;gap:20px;padding:25px 20px}.app-circuit-note h2{font-size:26px}}
.amp-gain-unit{display:flex;align-items:center;padding:0 14px;border-left:1px solid var(--line);color:var(--muted);font:12px var(--mono)}.amp-solve-hint{font-size:12px;color:var(--muted);margin:0 0 16px}.op-amp-circuit .wire,.op-amp-circuit .accent{stroke-width:1.8}.op-amp-circuit text{font-size:13px}.op-amp-circuit .component-value{font-size:14px}.op-amp-circuit .diagram-caption{font-size:11px}
.diagram .op-amp-circuit text{font-size:17px}.diagram .op-amp-circuit .component-name{font-size:16px}.diagram .op-amp-circuit .component-value{font-size:19px}.diagram .op-amp-circuit .diagram-caption{font-size:13px}.diagram .op-amp-circuit .wire,.diagram .op-amp-circuit .accent{stroke-width:2.2}